instance-of
Use Instance Of by type name
Use Instance Of by type name
Type creation, validation, and comparison for Javascript
Call your functions using instanceof operator (drunk programming only)
collection of all 'x-is-...' to test types of values
A fast, modular oop-inheritance library for javascript. Minimal basics combined with powerful decorators.
JavaScript all types detection module (crossbrowser)
Type creation, validation, and comparison for Javascript
Function argument validation for humans
omniverse
An es7 decorator used to validate class and methods arguments.
An instanceof alternative for non class based, factory oriented, programming.
Get the type of something. Seriously.
Type check values: `is.string('🦄') //=> true`
Mixin ES6 based classes made easy & simple.
compare the type of your value with one or several types
All values in JavaScript are objects. `typeofObject` gets a value's object type, including custom types.
Inherit from Error without performance penalties, instanceof behaves as expected and the error stack is correct
型・インスタンスのチェックなど
A better alternative to the typeof-operator in JS. Utilizes the internal [[CLASS]] property.
ECMAScript instanceof operator